how much nitrous can u run on a ka24de with being safe? i fu can turbo a ka to 300hp safley on stock block then waht about a 150 shot?

 

I say you run a 1000 shot and be the first man to put a piston on the moon.

 

 

lmao

 

Personally i would say dont try anything more than a 75 shot on a factory motor. you might be able to run 100 but I personally wouldnt push my luck.

 

OK, I'll begin by mentioning that I've never run a nitrous setup and I have no idea how much nitrous people have managed to run in the past. I'm sure if you search on some of the national boards you'll find some threads about nitrous on KAs that you should probably read to get an idea what the limit is.

The horsepower isn't as important as the torque here. For a 150 shot I'd probably want to run a two-stage system, like two stages of 75 each. The cylinder pressure is going to be immense if you just dump a 150 shot at 3000 rpm, and you're probably going to break something. You're also going to want more than just some basic used $300 kit- RPM window switches, bottle heater, nitrous pressure gauge, purge, there's all sorts of extra stuff you're going to want.

In fact, you might want to go direct port for one of the stages running that much nitrous. Uneven distribution of nitrous to different cylinders gets to be a big problem when you start spraying serious amounts. You're going to need a custom tune for when you're on the bottle.

A 150 shot on a four cylinder is no joke. That's like a 300 shot on a V8, and you don't see people just tossing that on a stock engine. I think there's more to this build than it's worth.

Now, a 75 shot or even a 100 shot could be done a lot more easily with minimal changes. I was thinking about spraying my car with a cheap dry kit, 75 shot, but I don't believe in spraying slow cars to make them slightly less slow. I'll spray an 11 second car to hit 10's, but spraying a 15 second car to hit 14's? Ehh..

 

i dont mean to thread jack but how much do you think a fully built ka would hold nitrous wise. ex. pistons, rods, bearings, decked head, headgasket, arp's, 264 cams, and still on 93 octane? what would be the estimated rwhp?

 

^Depends on the shot bro. How big of shot, really. The reason people build motors is to tolerate those intense conditions put on the motor. The rods are lighter/stronger, as are the pistons, and the valves are bigger, as are the cams, etc. Depends on the size of the shot really.

 

i was planning on doing something different idk i have a motor stand with a ls1 stuck to it so when it sells i'll have alittle money to play with

 

turbo. Filling up a bottle is NOT cheap. Just get a turbo kit. Lasts longer and more efficient.